https://github.com/timbray/rfc9839

Go-language library to check for problematic Unicode code points
https://github.com/timbray/rfc9839

Last synced: 10 months ago
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Go-language library to check for problematic Unicode code points

• Host: GitHub
• URL: https://github.com/timbray/rfc9839
• Owner: timbray
• License: gpl-3.0
• Created: 2025-05-28T17:43:48.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-08-27T00:22:12.000Z (11 months ago)
• Last Synced: 2025-08-27T07:10:18.865Z (10 months ago)
• Language: Go
• Size: 29.3 KB
• Stars: 24
• Watchers: 1
• Forks: 3
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# RFC9839

[![Tests](https://github.com/timbray/RFC9839/actions/workflows/go-unit-tests.yaml/badge.svg)](https://github.com/timbray/RFC9839/actions/workflows/go-unit-tests.yaml)

[![codecov](https://codecov.io/gh/timbray/RFC9839/graph/badge.svg?token=6V5I17FTIM)](https://codecov.io/gh/timbray/RFC9839)

[![0 dependencies!](https://0dependencies.dev/0dependencies.svg)](https://0dependencies.dev)

Go-language library to check for problematic Unicode code points.

This is based on the Unicode code-point subsets specified in [RFC9839](https://www.rfc-editor.org/rfc/rfc9839.html).

The package defines a `Subset` type and exports three instances, named `Scalars`,

`XmlChars`, and `Assignables`. It exports three functions:

```go

func (sub *Subset) ValidRune(r rune) bool

func (sub *Subset) ValidString(s string) bool

func (sub *Subset) ValidUtf8(u []byte) bool

```

A typical call might look like:

```go

if !rfc9839.Assignables.ValidRune(r) {

	return t.Error("invalid rune")

}

```